Math art by Daniel E. Weeks

To use these, you'll need a reasonably large display and a keyboard. These are not mobile-friendly.

Harmonograph

Hearts

Triangles

Triangles II

Triangles III

Grid art

Grid art II

Grid art III

Grid art IV

Modular math

Modular math II

Clifford attractor

de Jong attractor

Fractal dream attractor

Svensson attractor

Gumowski-Mira attractor

Bedhead attractor

Hopalong attractor

Symmetric icon attractor

Spirals